$ git clone -n https://src.fedoraproject.org/rpms/sddm.git /var/lib/mock/f40-build-2385020-60489/root/chroot_tmpdir/scmroot/sddm
Cloning into '/var/lib/mock/f40-build-2385020-60489/root/chroot_tmpdir/scmroot/sddm'...
$ git fetch origin a1602a053779f27e5f43aa8d3d641834f608e006:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/sddm
 * [new ref]         a1602a053779f27e5f43aa8d3d641834f608e006 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a1602a0 Remove LayerShellQt patch